13230343140221 has 4 divisors (see below), whose sum is σ = 13427810948352. Its totient is φ = 13032875332092.

The previous prime is 13230343140191. The next prime is 13230343140269. The reversal of 13230343140221 is 12204134303231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13230343140221 - 2²² = 13230338945917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230343140121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98733903965 + ... + 98733904098.

It is an arithmetic number, because the mean of its divisors is an integer number (3356952737088).

Almost surely, 2^{13230343140221} is an apocalyptic number.

It is an amenable number.

13230343140221 is a deficient number, since it is larger than the sum of its proper divisors (197467808131).

13230343140221 is an equidigital number, since it uses as much as digits as its factorization.

13230343140221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197467808130.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13230343140221 its reverse (12204134303231), we get a palindrome (25434477443452).

The spelling of 13230343140221 in words is "thirteen trillion, two hundred thirty billion, three hundred forty-three million, one hundred forty thousand, two hundred twenty-one".